Window-screen.



No. 68|,249. y l Patented Aug. 27, 190|.

T. .1. NEvms.

WINDOW SCREEN.

(Application led Jan. 5, 1901.)

` (No Model.)

i ro

f ss

.Nrrnn Srnrns THOMAS NEVINS, OF ST. LOUIS, MISSOURI.

WINDOW-SCREEN.

SEECIFIGATIGN forming part of Letters Patent No. 681,249, dated August 27, 1901.

Application filed January 5, 1901. Serial No. 42,181. (No model.)

tain new and useful Improvements in Window-Screens, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part thereof.

My invention has relation to improvements in window-screens; and it consists in the novel arrangement and combination of parts more fully set forth in the specification and pointed out in the claims.

In the drawings, Figure 1 is a perspective view of the casing of the screen with the latter partially withdrawn. Fig. 2 is a face elevation of the casing secured to a Windowsash, a part of the window-frame being shown, and parts of casing broken away to show interior construction. Fig. 3 is a sectional detail showing manner of securing the windingspring, and Fig. 4 is a transverse sectional detail showing manner of securing the two 2,5 ends of the wire screen or netting.

The object of my invention is to provide "Mw the ordinary window-sash with a screen tum housed 1n a sultable caslng, which maybe fu llyattached to said sash, the screen moving with the sash during the raising or lowering y thereof.

`A further object is to construct a casing and screen which can be readily attached to the prevailing forms of sashes.

In detail the invention may be described as follows:

Referring to the drawings, F represents a window-frame, and S the sash thereof.

C is a casing which can be secured to one end of the sash. Between the opposite ends of the casing C is mounted a hollow roller 1, whose one end has mounted therein a block 2, provided with a terminal socket 3, which serves as a bearing Vfor one end of a stem 4, adapted to wind a spring 5, coiled about the same, one end of the spring being attached to such stem andthe other to the block 2. The opposite end of the stem 4 terminates in a journal 4', passing through the adjacent end of the hollow roller, the projecting portion of said journal having coupled thereto a ratchet-disk 6, provided with a square socket 7 for the reception of the stem of a suitable winding-key. (Not shown.) The teeth. of the ratchet-disk 6 are engaged by the spring-actuated pawl 8, which is kept in engagement with the teeth of the ratchet bya spring 9 and guided by a lateral pin 10, projecting through an elongated slot 11 in the end wall ofthe casing. As seen in Fig. 1, the ratchetdisk can be turned in the direction of the movement of the hands of a Watch, thereby winding up the spring 5 and imparting any desirable tension thereto. The wire screen 12 has one end secured to the periphery of the roller, and after being wrapped several times about the same the free end of the screen is secured to a hollow tubular bar 13, preferably rectangular in cross-section, the end walls of the casing being recessed at 14 to receive the ends of said bar 13, whereby the latter when the sash is lowered will be flush with the face of the casing. The bar 13 is secured to the frame F by causing the outer'ends of the spring-actuated latch-rods 15 housed therein to enter suitable depressions or sockets in the window-frame, said ends entering the sockets automatically by the action of the spring 16, which tends to force said rods apart. They are retracted by the finger and thumb holds 17, carried at the adjacent inner ends ofthe latch-rods, by simply drawing the parts together and compressing the spring 16. After the desired tension has been imparted to the roller-spring 5 and the bar 13 is secured in place the sash may be opened (see Fig. 1) any distance and the screen will follow up the same. Upon the closing of the same the tension of the spring 5 will wind up the screen on the roller, as is obvious, the bar 13 and casing coming Hush with one another when the latter is in its low' IOO through the casing, a tubular bar at the outer end of the screen, the outer corners of the casing being recessed to receive the ends of the bar, whereby the outer face of the latter will be iiush with lthe casing when the sash is closed, and spring-actuated latcharods for securing said bar to the windowiframe, substantially as set forth.

2. A window-screen comprising a casing, a hollow roller mounted therein, a stem projecting from one end of the roller, a, block having a socket serving as a bearing for one end of the stem, a spindle forming a, part of the stem and projecting through the end of the roller, a coiled spring encircling the stem and having one end secured thereto and one tuated latch-rods projecting from the opp0 site ends of the tubular bar, and means for winding the ratchet-disk from the outside of the casing, substantially as set forth.

In testimony whereof I have signed my name in the presence ot' two subscribing wit- DGSSQS.

THOMAS J. NEVINS. Witnesses:

NATHAN THOMPSON, YUBIE W. ROGERS. 

